naphtha

noun

naph·​tha ˈnaf-thə How to pronounce naphtha (audio)
nonstandard
ˈnap- How to pronounce naphtha (audio)
1
: any of various volatile often flammable liquid hydrocarbon mixtures used chiefly as solvents and diluents
2

Examples of naphtha in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Some South Korean companies, lacking sufficient naphtha feedstock, have been unable to maintain normal production of chemicals used to manufacture plastics. CNBC, 26 May 2026 The study, led by Sang-yup Lee, comes at a time when global naphtha prices are volatile due to supply constraints and higher demand from the petrochemical industry. Sujita Sinha, Interesting Engineering, 20 May 2026 The region’s supplies of naphtha and LPG, both used for petrochemicals, have been particularly hit, according to Goldman Sachs. Grant Smith, Fortune, 9 May 2026 South Korea last year imported more than 60% of its crude and 50% of its naphtha, a key petrochemical feedstock used in plastics manufacturing, through the Strait of Hormuz. ABC News, 7 May 2026 See All Example Sentences for naphtha

Word History

Etymology

Latin, from Greek, of Iranian origin; akin to Persian neft naphtha

First Known Use

1543, in the meaning defined at sense 1

Time Traveler
The first known use of naphtha was in 1543

Browse Nearby Words

Cite this Entry

“Naphtha.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/naphtha. Accessed 30 May. 2026.

Kids Definition

naphtha

noun
naph·​tha ˈnaf-thə How to pronounce naphtha (audio) ˈnap- How to pronounce naphtha (audio)
: any of various often flammable liquids prepared from coal or petroleum and used especially to dissolve substances

Medical Definition

naphtha

noun
naph·​tha ˈnaf-thə How to pronounce naphtha (audio) ˈnap- How to pronounce naphtha (audio)
: any of various volatile often flammable liquid hydrocarbon mixtures used chiefly as solvents and diluents

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